./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:58:35,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:58:35,984 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-29 03:58:35,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:58:35,989 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:58:36,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:58:36,011 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:58:36,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:58:36,012 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:58:36,013 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:58:36,013 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:58:36,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:58:36,015 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:58:36,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:58:36,016 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:58:36,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:58:36,017 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:58:36,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:58:36,018 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:58:36,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:58:36,019 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 03:58:36,019 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 03:58:36,020 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 03:58:36,020 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:58:36,021 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 03:58:36,021 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:58:36,022 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:58:36,022 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:58:36,022 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:58:36,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:58:36,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:58:36,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:58:36,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:58:36,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:58:36,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:58:36,024 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:58:36,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:58:36,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:58:36,025 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:58:36,025 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:58:36,025 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:58:36,026 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 [2023-11-29 03:58:36,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:58:36,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:58:36,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:58:36,294 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:58:36,295 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:58:36,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2023-11-29 03:58:39,024 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:58:39,297 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:58:39,298 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2023-11-29 03:58:39,316 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/data/e02150334/e1a9cac729724bb38b55ace6bc3e9884/FLAG88e9ee867 [2023-11-29 03:58:39,329 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/data/e02150334/e1a9cac729724bb38b55ace6bc3e9884 [2023-11-29 03:58:39,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:58:39,333 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:58:39,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:58:39,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:58:39,340 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:58:39,340 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:58:39" (1/1) ... [2023-11-29 03:58:39,341 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dbe73bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:39, skipping insertion in model container [2023-11-29 03:58:39,342 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:58:39" (1/1) ... [2023-11-29 03:58:39,433 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:58:39,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:58:39,987 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-29 03:58:39,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@439d03af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:39, skipping insertion in model container [2023-11-29 03:58:39,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:58:39,988 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 03:58:39,990 INFO L158 Benchmark]: Toolchain (without parser) took 655.66ms. Allocated memory is still 167.8MB. Free memory was 128.7MB in the beginning and 119.5MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 03:58:39,990 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:58:39,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 653.37ms. Allocated memory is still 167.8MB. Free memory was 128.3MB in the beginning and 120.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 03:58:39,992 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 653.37ms. Allocated memory is still 167.8MB. Free memory was 128.3MB in the beginning and 120.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:58:41,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:58:41,800 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-29 03:58:41,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:58:41,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:58:41,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:58:41,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:58:41,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:58:41,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:58:41,836 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:58:41,837 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:58:41,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:58:41,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:58:41,839 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:58:41,839 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:58:41,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:58:41,840 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:58:41,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:58:41,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:58:41,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:58:41,842 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 03:58:41,843 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 03:58:41,844 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 03:58:41,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:58:41,844 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 03:58:41,845 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 03:58:41,845 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 03:58:41,846 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:58:41,846 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:58:41,847 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:58:41,847 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:58:41,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:58:41,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:58:41,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:58:41,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:58:41,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:58:41,849 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:58:41,849 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 03:58:41,849 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 03:58:41,850 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:58:41,850 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:58:41,850 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:58:41,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:58:41,851 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 03:58:41,851 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 [2023-11-29 03:58:42,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:58:42,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:58:42,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:58:42,179 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:58:42,179 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:58:42,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2023-11-29 03:58:44,988 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:58:45,270 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:58:45,271 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2023-11-29 03:58:45,290 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/data/84cdc8414/dc4e4237ad024abb962b17cee9b01b41/FLAG5a6fd8795 [2023-11-29 03:58:45,304 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/data/84cdc8414/dc4e4237ad024abb962b17cee9b01b41 [2023-11-29 03:58:45,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:58:45,309 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:58:45,310 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:58:45,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:58:45,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:58:45,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:58:45" (1/1) ... [2023-11-29 03:58:45,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b11209a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:45, skipping insertion in model container [2023-11-29 03:58:45,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:58:45" (1/1) ... [2023-11-29 03:58:45,374 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:58:45,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:58:45,943 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 03:58:45,960 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:58:46,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:58:46,083 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:58:46,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:58:46,215 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:58:46,223 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:58:46,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46 WrapperNode [2023-11-29 03:58:46,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:58:46,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:58:46,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:58:46,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:58:46,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46" (1/1) ... [2023-11-29 03:58:46,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46" (1/1) ... [2023-11-29 03:58:46,356 INFO L138 Inliner]: procedures = 180, calls = 489, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1732 [2023-11-29 03:58:46,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:58:46,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:58:46,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:58:46,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:58:46,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46" (1/1) ... [2023-11-29 03:58:46,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46" (1/1) ... [2023-11-29 03:58:46,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46" (1/1) ... [2023-11-29 03:58:46,590 INFO L175 MemorySlicer]: Split 453 memory accesses to 5 slices as follows [2, 5, 5, 24, 417]. 92 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 101 writes are split as follows [0, 1, 1, 1, 98]. [2023-11-29 03:58:46,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46" (1/1) ... [2023-11-29 03:58:46,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46" (1/1) ... [2023-11-29 03:58:46,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46" (1/1) ... [2023-11-29 03:58:46,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46" (1/1) ... [2023-11-29 03:58:46,661 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46" (1/1) ... [2023-11-29 03:58:46,670 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46" (1/1) ... [2023-11-29 03:58:46,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:58:46,683 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:58:46,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:58:46,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:58:46,685 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46" (1/1) ... [2023-11-29 03:58:46,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:58:46,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:58:46,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:58:46,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:58:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 03:58:46,755 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 03:58:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 03:58:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 03:58:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 03:58:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 03:58:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-29 03:58:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 03:58:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 03:58:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 03:58:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 03:58:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-29 03:58:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:58:46,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:58:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 03:58:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 03:58:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 03:58:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 03:58:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-29 03:58:46,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 03:58:46,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 03:58:46,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 03:58:46,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 03:58:46,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-29 03:58:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 03:58:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:58:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 03:58:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 03:58:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 03:58:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 03:58:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 03:58:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:58:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 03:58:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 03:58:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 03:58:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 03:58:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 03:58:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 03:58:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:58:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 03:58:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 03:58:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 03:58:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 03:58:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-29 03:58:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 03:58:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 03:58:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 03:58:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 03:58:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-29 03:58:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:58:46,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:58:47,020 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:58:47,023 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:58:47,063 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-29 03:58:47,101 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-29 03:58:47,122 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-29 03:58:47,144 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-29 03:58:47,162 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-29 03:58:53,837 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:58:54,084 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:58:54,085 INFO L309 CfgBuilder]: Removed 100 assume(true) statements. [2023-11-29 03:58:54,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:58:54 BoogieIcfgContainer [2023-11-29 03:58:54,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:58:54,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:58:54,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:58:54,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:58:54,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:58:45" (1/3) ... [2023-11-29 03:58:54,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adb0e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:58:54, skipping insertion in model container [2023-11-29 03:58:54,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:46" (2/3) ... [2023-11-29 03:58:54,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adb0e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:58:54, skipping insertion in model container [2023-11-29 03:58:54,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:58:54" (3/3) ... [2023-11-29 03:58:54,096 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-3.i [2023-11-29 03:58:54,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:58:54,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 931 error locations. [2023-11-29 03:58:54,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:58:54,207 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4e507918, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:58:54,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 931 error locations. [2023-11-29 03:58:54,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 1672 states, 730 states have (on average 2.543835616438356) internal successors, (1857), 1662 states have internal predecessors, (1857), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 03:58:54,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 03:58:54,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:58:54,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 03:58:54,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:58:54,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:54,237 INFO L85 PathProgramCache]: Analyzing trace with hash 87917312, now seen corresponding path program 1 times [2023-11-29 03:58:54,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:58:54,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871798486] [2023-11-29 03:58:54,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:54,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:58:54,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:58:54,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:58:54,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 03:58:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:54,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:58:54,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:58:54,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:54,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:58:54,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:58:54,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871798486] [2023-11-29 03:58:54,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871798486] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:54,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:58:54,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:58:54,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596064726] [2023-11-29 03:58:54,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:54,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:58:54,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:58:54,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:58:54,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:58:54,629 INFO L87 Difference]: Start difference. First operand has 1672 states, 730 states have (on average 2.543835616438356) internal successors, (1857), 1662 states have internal predecessors, (1857), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:55,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:58:55,687 INFO L93 Difference]: Finished difference Result 1652 states and 1753 transitions. [2023-11-29 03:58:55,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:58:55,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-29 03:58:55,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:58:55,712 INFO L225 Difference]: With dead ends: 1652 [2023-11-29 03:58:55,712 INFO L226 Difference]: Without dead ends: 1651 [2023-11-29 03:58:55,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:58:55,716 INFO L413 NwaCegarLoop]: 1576 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:58:55,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1576 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 03:58:55,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2023-11-29 03:58:55,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1651. [2023-11-29 03:58:55,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 721 states have (on average 2.396671289875173) internal successors, (1728), 1641 states have internal predecessors, (1728), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:58:55,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 1752 transitions. [2023-11-29 03:58:55,818 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 1752 transitions. Word has length 4 [2023-11-29 03:58:55,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:58:55,818 INFO L495 AbstractCegarLoop]: Abstraction has 1651 states and 1752 transitions. [2023-11-29 03:58:55,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:55,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 1752 transitions. [2023-11-29 03:58:55,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 03:58:55,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:58:55,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 03:58:55,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:58:56,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:58:56,020 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:58:56,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:56,021 INFO L85 PathProgramCache]: Analyzing trace with hash 87917374, now seen corresponding path program 1 times [2023-11-29 03:58:56,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:58:56,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987946652] [2023-11-29 03:58:56,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:56,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:58:56,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:58:56,023 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:58:56,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 03:58:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:56,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:58:56,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:58:56,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 03:58:56,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:56,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:58:56,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:58:56,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987946652] [2023-11-29 03:58:56,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987946652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:56,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:58:56,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:58:56,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706066885] [2023-11-29 03:58:56,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:56,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:58:56,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:58:56,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:58:56,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:58:56,285 INFO L87 Difference]: Start difference. First operand 1651 states and 1752 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:59,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:58:59,721 INFO L93 Difference]: Finished difference Result 1880 states and 2025 transitions. [2023-11-29 03:58:59,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:58:59,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-29 03:58:59,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:58:59,730 INFO L225 Difference]: With dead ends: 1880 [2023-11-29 03:58:59,730 INFO L226 Difference]: Without dead ends: 1880 [2023-11-29 03:58:59,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:58:59,732 INFO L413 NwaCegarLoop]: 1113 mSDtfsCounter, 1235 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:58:59,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1512 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 03:58:59,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2023-11-29 03:58:59,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1626. [2023-11-29 03:58:59,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 787 states have (on average 2.238881829733164) internal successors, (1762), 1616 states have internal predecessors, (1762), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:58:59,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 1786 transitions. [2023-11-29 03:58:59,783 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 1786 transitions. Word has length 4 [2023-11-29 03:58:59,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:58:59,784 INFO L495 AbstractCegarLoop]: Abstraction has 1626 states and 1786 transitions. [2023-11-29 03:58:59,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:59,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 1786 transitions. [2023-11-29 03:58:59,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 03:58:59,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:58:59,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 03:58:59,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 03:58:59,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:58:59,985 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:58:59,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:59,986 INFO L85 PathProgramCache]: Analyzing trace with hash 87917375, now seen corresponding path program 1 times [2023-11-29 03:58:59,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:58:59,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019806506] [2023-11-29 03:58:59,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:59,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:58:59,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:58:59,988 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:58:59,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 03:59:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:00,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:59:00,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:00,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 03:59:00,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:00,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:00,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:00,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019806506] [2023-11-29 03:59:00,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019806506] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:00,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:00,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:59:00,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457582879] [2023-11-29 03:59:00,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:00,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:59:00,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:00,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:59:00,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:59:00,141 INFO L87 Difference]: Start difference. First operand 1626 states and 1786 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:05,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:05,356 INFO L93 Difference]: Finished difference Result 2095 states and 2306 transitions. [2023-11-29 03:59:05,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:59:05,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-29 03:59:05,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:05,368 INFO L225 Difference]: With dead ends: 2095 [2023-11-29 03:59:05,368 INFO L226 Difference]: Without dead ends: 2095 [2023-11-29 03:59:05,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:59:05,370 INFO L413 NwaCegarLoop]: 1441 mSDtfsCounter, 673 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:05,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 2101 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-29 03:59:05,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2023-11-29 03:59:05,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 1749. [2023-11-29 03:59:05,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 920 states have (on average 2.2119565217391304) internal successors, (2035), 1739 states have internal predecessors, (2035), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:59:05,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2059 transitions. [2023-11-29 03:59:05,423 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2059 transitions. Word has length 4 [2023-11-29 03:59:05,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:05,423 INFO L495 AbstractCegarLoop]: Abstraction has 1749 states and 2059 transitions. [2023-11-29 03:59:05,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:05,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2059 transitions. [2023-11-29 03:59:05,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 03:59:05,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:05,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 03:59:05,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 03:59:05,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:05,625 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:05,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:05,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1567837391, now seen corresponding path program 1 times [2023-11-29 03:59:05,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:05,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812289497] [2023-11-29 03:59:05,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:05,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:05,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:05,628 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:05,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 03:59:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:05,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:59:05,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:05,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:05,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:05,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:05,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812289497] [2023-11-29 03:59:05,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812289497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:05,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:05,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:59:05,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115431617] [2023-11-29 03:59:05,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:05,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:59:05,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:05,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:59:05,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:59:05,767 INFO L87 Difference]: Start difference. First operand 1749 states and 2059 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:07,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:07,750 INFO L93 Difference]: Finished difference Result 3134 states and 3735 transitions. [2023-11-29 03:59:07,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:59:07,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 03:59:07,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:07,767 INFO L225 Difference]: With dead ends: 3134 [2023-11-29 03:59:07,767 INFO L226 Difference]: Without dead ends: 3134 [2023-11-29 03:59:07,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:59:07,769 INFO L413 NwaCegarLoop]: 1688 mSDtfsCounter, 1243 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:07,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 3154 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 03:59:07,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2023-11-29 03:59:07,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 1751. [2023-11-29 03:59:07,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 922 states have (on average 2.2093275488069413) internal successors, (2037), 1741 states have internal predecessors, (2037), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:59:07,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2061 transitions. [2023-11-29 03:59:07,827 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2061 transitions. Word has length 5 [2023-11-29 03:59:07,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:07,828 INFO L495 AbstractCegarLoop]: Abstraction has 1751 states and 2061 transitions. [2023-11-29 03:59:07,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:07,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2061 transitions. [2023-11-29 03:59:07,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 03:59:07,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:07,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:07,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 03:59:08,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:08,032 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:08,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:08,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1367398792, now seen corresponding path program 1 times [2023-11-29 03:59:08,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:08,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068513828] [2023-11-29 03:59:08,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:08,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:08,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:08,035 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:08,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 03:59:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:08,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:59:08,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:08,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:08,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:08,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:08,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068513828] [2023-11-29 03:59:08,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068513828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:08,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:08,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:59:08,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742637200] [2023-11-29 03:59:08,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:08,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:59:08,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:08,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:59:08,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:59:08,244 INFO L87 Difference]: Start difference. First operand 1751 states and 2061 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:09,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:09,456 INFO L93 Difference]: Finished difference Result 1712 states and 2021 transitions. [2023-11-29 03:59:09,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:59:09,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-29 03:59:09,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:09,467 INFO L225 Difference]: With dead ends: 1712 [2023-11-29 03:59:09,467 INFO L226 Difference]: Without dead ends: 1712 [2023-11-29 03:59:09,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:59:09,468 INFO L413 NwaCegarLoop]: 1426 mSDtfsCounter, 70 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:09,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2803 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:59:09,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2023-11-29 03:59:09,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1712. [2023-11-29 03:59:09,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1712 states, 907 states have (on average 2.201764057331863) internal successors, (1997), 1702 states have internal predecessors, (1997), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:59:09,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2021 transitions. [2023-11-29 03:59:09,509 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2021 transitions. Word has length 10 [2023-11-29 03:59:09,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:09,509 INFO L495 AbstractCegarLoop]: Abstraction has 1712 states and 2021 transitions. [2023-11-29 03:59:09,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:09,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2021 transitions. [2023-11-29 03:59:09,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 03:59:09,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:09,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:09,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 03:59:09,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:09,710 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:09,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:09,711 INFO L85 PathProgramCache]: Analyzing trace with hash -189756190, now seen corresponding path program 1 times [2023-11-29 03:59:09,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:09,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115352141] [2023-11-29 03:59:09,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:09,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:09,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:09,712 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:09,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 03:59:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:09,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:59:09,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:09,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:09,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:09,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:09,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115352141] [2023-11-29 03:59:09,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115352141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:09,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:09,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:59:09,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567145735] [2023-11-29 03:59:09,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:09,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:59:09,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:09,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:59:09,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:59:09,883 INFO L87 Difference]: Start difference. First operand 1712 states and 2021 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:11,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:11,543 INFO L93 Difference]: Finished difference Result 1698 states and 2000 transitions. [2023-11-29 03:59:11,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:59:11,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-29 03:59:11,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:11,552 INFO L225 Difference]: With dead ends: 1698 [2023-11-29 03:59:11,552 INFO L226 Difference]: Without dead ends: 1698 [2023-11-29 03:59:11,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:11,553 INFO L413 NwaCegarLoop]: 1395 mSDtfsCounter, 58 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 4161 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:11,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 4161 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:59:11,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2023-11-29 03:59:11,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1697. [2023-11-29 03:59:11,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 906 states have (on average 2.1799116997792494) internal successors, (1975), 1687 states have internal predecessors, (1975), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:59:11,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 1999 transitions. [2023-11-29 03:59:11,582 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 1999 transitions. Word has length 12 [2023-11-29 03:59:11,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:11,583 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 1999 transitions. [2023-11-29 03:59:11,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:11,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 1999 transitions. [2023-11-29 03:59:11,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 03:59:11,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:11,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:11,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 03:59:11,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:11,787 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:11,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:11,787 INFO L85 PathProgramCache]: Analyzing trace with hash -991145392, now seen corresponding path program 1 times [2023-11-29 03:59:11,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:11,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314096289] [2023-11-29 03:59:11,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:11,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:11,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:11,789 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:11,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 03:59:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:11,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:59:11,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:11,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 03:59:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:12,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:12,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:12,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314096289] [2023-11-29 03:59:12,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314096289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:12,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:12,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:59:12,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052290237] [2023-11-29 03:59:12,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:12,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:59:12,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:12,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:59:12,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:59:12,014 INFO L87 Difference]: Start difference. First operand 1697 states and 1999 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:15,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:15,895 INFO L93 Difference]: Finished difference Result 1948 states and 2235 transitions. [2023-11-29 03:59:15,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:59:15,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-29 03:59:15,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:15,903 INFO L225 Difference]: With dead ends: 1948 [2023-11-29 03:59:15,903 INFO L226 Difference]: Without dead ends: 1948 [2023-11-29 03:59:15,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:15,904 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 1170 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:15,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 1916 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-29 03:59:15,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2023-11-29 03:59:15,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1693. [2023-11-29 03:59:15,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 906 states have (on average 2.1754966887417218) internal successors, (1971), 1683 states have internal predecessors, (1971), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:59:15,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 1995 transitions. [2023-11-29 03:59:15,936 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 1995 transitions. Word has length 26 [2023-11-29 03:59:15,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:15,936 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 1995 transitions. [2023-11-29 03:59:15,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:15,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 1995 transitions. [2023-11-29 03:59:15,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 03:59:15,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:15,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:15,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 03:59:16,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:16,138 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:16,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:16,139 INFO L85 PathProgramCache]: Analyzing trace with hash -991145391, now seen corresponding path program 1 times [2023-11-29 03:59:16,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:16,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715621698] [2023-11-29 03:59:16,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:16,140 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:16,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:16,141 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:16,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 03:59:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:16,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:59:16,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:16,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 03:59:16,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:16,516 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:16,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:16,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715621698] [2023-11-29 03:59:16,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715621698] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:16,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:16,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:59:16,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082191471] [2023-11-29 03:59:16,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:16,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:59:16,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:16,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:59:16,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:59:16,519 INFO L87 Difference]: Start difference. First operand 1693 states and 1995 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:22,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:22,451 INFO L93 Difference]: Finished difference Result 2036 states and 2239 transitions. [2023-11-29 03:59:22,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:59:22,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-29 03:59:22,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:22,462 INFO L225 Difference]: With dead ends: 2036 [2023-11-29 03:59:22,462 INFO L226 Difference]: Without dead ends: 2036 [2023-11-29 03:59:22,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:22,463 INFO L413 NwaCegarLoop]: 1201 mSDtfsCounter, 610 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 2072 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 2535 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:22,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 2535 Invalid, 2075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2072 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-29 03:59:22,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2023-11-29 03:59:22,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 1689. [2023-11-29 03:59:22,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 906 states have (on average 2.171081677704194) internal successors, (1967), 1679 states have internal predecessors, (1967), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:59:22,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 1991 transitions. [2023-11-29 03:59:22,499 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 1991 transitions. Word has length 26 [2023-11-29 03:59:22,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:22,501 INFO L495 AbstractCegarLoop]: Abstraction has 1689 states and 1991 transitions. [2023-11-29 03:59:22,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:22,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 1991 transitions. [2023-11-29 03:59:22,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 03:59:22,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:22,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:22,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 03:59:22,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:22,703 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:22,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:22,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1864346678, now seen corresponding path program 1 times [2023-11-29 03:59:22,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:22,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213672370] [2023-11-29 03:59:22,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:22,704 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:22,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:22,705 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:22,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 03:59:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:22,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:59:22,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:22,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:22,948 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:22,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:22,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213672370] [2023-11-29 03:59:22,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213672370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:22,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:22,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:59:22,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952932284] [2023-11-29 03:59:22,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:22,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:59:22,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:22,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:59:22,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:59:22,950 INFO L87 Difference]: Start difference. First operand 1689 states and 1991 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:24,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:24,566 INFO L93 Difference]: Finished difference Result 1683 states and 1981 transitions. [2023-11-29 03:59:24,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:59:24,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2023-11-29 03:59:24,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:24,574 INFO L225 Difference]: With dead ends: 1683 [2023-11-29 03:59:24,575 INFO L226 Difference]: Without dead ends: 1683 [2023-11-29 03:59:24,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:24,575 INFO L413 NwaCegarLoop]: 1389 mSDtfsCounter, 23 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4147 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:24,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4147 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:59:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2023-11-29 03:59:24,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1683. [2023-11-29 03:59:24,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 900 states have (on average 2.1744444444444446) internal successors, (1957), 1673 states have internal predecessors, (1957), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:59:24,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 1981 transitions. [2023-11-29 03:59:24,607 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 1981 transitions. Word has length 42 [2023-11-29 03:59:24,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:24,608 INFO L495 AbstractCegarLoop]: Abstraction has 1683 states and 1981 transitions. [2023-11-29 03:59:24,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:24,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 1981 transitions. [2023-11-29 03:59:24,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 03:59:24,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:24,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:24,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 03:59:24,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:24,810 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:24,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:24,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1342078058, now seen corresponding path program 1 times [2023-11-29 03:59:24,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:24,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990161149] [2023-11-29 03:59:24,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:24,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:24,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:24,812 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:24,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 03:59:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:25,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:59:25,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:25,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:25,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:25,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:25,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990161149] [2023-11-29 03:59:25,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990161149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:25,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:25,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:59:25,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663596280] [2023-11-29 03:59:25,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:25,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:59:25,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:25,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:59:25,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:59:25,260 INFO L87 Difference]: Start difference. First operand 1683 states and 1981 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:26,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:26,769 INFO L93 Difference]: Finished difference Result 2071 states and 2386 transitions. [2023-11-29 03:59:26,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:59:26,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-11-29 03:59:26,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:26,781 INFO L225 Difference]: With dead ends: 2071 [2023-11-29 03:59:26,781 INFO L226 Difference]: Without dead ends: 2071 [2023-11-29 03:59:26,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:59:26,782 INFO L413 NwaCegarLoop]: 1455 mSDtfsCounter, 419 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:26,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 2744 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 03:59:26,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2071 states. [2023-11-29 03:59:26,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2071 to 1726. [2023-11-29 03:59:26,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 943 states have (on average 2.1208907741251326) internal successors, (2000), 1716 states have internal predecessors, (2000), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:59:26,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2024 transitions. [2023-11-29 03:59:26,815 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2024 transitions. Word has length 46 [2023-11-29 03:59:26,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:26,816 INFO L495 AbstractCegarLoop]: Abstraction has 1726 states and 2024 transitions. [2023-11-29 03:59:26,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:26,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2024 transitions. [2023-11-29 03:59:26,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 03:59:26,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:26,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:26,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 03:59:27,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:27,020 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:27,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:27,020 INFO L85 PathProgramCache]: Analyzing trace with hash -110569671, now seen corresponding path program 1 times [2023-11-29 03:59:27,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:27,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613173731] [2023-11-29 03:59:27,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:27,021 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:27,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:27,022 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:27,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 03:59:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:27,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:59:27,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:27,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 03:59:27,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 03:59:27,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:59:27,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 03:59:27,868 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 03:59:27,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 03:59:27,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:27,885 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:27,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:27,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613173731] [2023-11-29 03:59:27,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613173731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:27,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:27,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:59:27,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709527852] [2023-11-29 03:59:27,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:27,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:59:27,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:27,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:59:27,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:59:27,887 INFO L87 Difference]: Start difference. First operand 1726 states and 2024 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:31,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:31,913 INFO L93 Difference]: Finished difference Result 1896 states and 2179 transitions. [2023-11-29 03:59:31,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:59:31,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2023-11-29 03:59:31,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:31,921 INFO L225 Difference]: With dead ends: 1896 [2023-11-29 03:59:31,921 INFO L226 Difference]: Without dead ends: 1896 [2023-11-29 03:59:31,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:59:31,922 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 2399 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:31,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2415 Valid, 956 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-29 03:59:31,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2023-11-29 03:59:31,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1509. [2023-11-29 03:59:31,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 810 states have (on average 2.0148148148148146) internal successors, (1632), 1499 states have internal predecessors, (1632), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:59:31,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1656 transitions. [2023-11-29 03:59:31,950 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1656 transitions. Word has length 49 [2023-11-29 03:59:31,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:31,950 INFO L495 AbstractCegarLoop]: Abstraction has 1509 states and 1656 transitions. [2023-11-29 03:59:31,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:31,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1656 transitions. [2023-11-29 03:59:31,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 03:59:31,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:31,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:31,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 03:59:32,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:32,156 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:32,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:32,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1862274494, now seen corresponding path program 1 times [2023-11-29 03:59:32,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:32,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978456729] [2023-11-29 03:59:32,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:32,158 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:32,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:32,158 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:32,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 03:59:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:32,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:59:32,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:32,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 03:59:32,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 03:59:32,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 03:59:32,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:32,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:32,450 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:32,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978456729] [2023-11-29 03:59:32,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978456729] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:32,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:32,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:59:32,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092278371] [2023-11-29 03:59:32,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:32,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:59:32,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:32,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:59:32,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:32,452 INFO L87 Difference]: Start difference. First operand 1509 states and 1656 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:36,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:36,915 INFO L93 Difference]: Finished difference Result 1508 states and 1655 transitions. [2023-11-29 03:59:36,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:59:36,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-11-29 03:59:36,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:36,923 INFO L225 Difference]: With dead ends: 1508 [2023-11-29 03:59:36,923 INFO L226 Difference]: Without dead ends: 1508 [2023-11-29 03:59:36,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:59:36,924 INFO L413 NwaCegarLoop]: 1317 mSDtfsCounter, 3 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 2540 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 2541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:36,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3395 Invalid, 2541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2540 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-29 03:59:36,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2023-11-29 03:59:36,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1508. [2023-11-29 03:59:36,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1508 states, 810 states have (on average 2.0135802469135804) internal successors, (1631), 1498 states have internal predecessors, (1631), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:59:36,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 1655 transitions. [2023-11-29 03:59:36,949 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 1655 transitions. Word has length 53 [2023-11-29 03:59:36,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:36,949 INFO L495 AbstractCegarLoop]: Abstraction has 1508 states and 1655 transitions. [2023-11-29 03:59:36,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:36,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 1655 transitions. [2023-11-29 03:59:36,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 03:59:36,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:36,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:36,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 03:59:37,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:37,151 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:37,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:37,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1862274495, now seen corresponding path program 1 times [2023-11-29 03:59:37,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:37,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484128905] [2023-11-29 03:59:37,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:37,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:37,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:37,154 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:37,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-29 03:59:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:37,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 03:59:37,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:37,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 03:59:37,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 03:59:37,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 03:59:37,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-29 03:59:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:37,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:37,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:37,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484128905] [2023-11-29 03:59:37,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484128905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:37,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:37,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:59:37,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412701188] [2023-11-29 03:59:37,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:37,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:59:37,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:37,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:59:37,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:37,499 INFO L87 Difference]: Start difference. First operand 1508 states and 1655 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:43,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:43,378 INFO L93 Difference]: Finished difference Result 1507 states and 1654 transitions. [2023-11-29 03:59:43,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:59:43,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-11-29 03:59:43,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:43,384 INFO L225 Difference]: With dead ends: 1507 [2023-11-29 03:59:43,384 INFO L226 Difference]: Without dead ends: 1507 [2023-11-29 03:59:43,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:59:43,385 INFO L413 NwaCegarLoop]: 1317 mSDtfsCounter, 1 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3451 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:43,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3451 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-29 03:59:43,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2023-11-29 03:59:43,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1507. [2023-11-29 03:59:43,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 809 states have (on average 2.0148331273176763) internal successors, (1630), 1497 states have internal predecessors, (1630), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:59:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1654 transitions. [2023-11-29 03:59:43,403 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1654 transitions. Word has length 53 [2023-11-29 03:59:43,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:43,404 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 1654 transitions. [2023-11-29 03:59:43,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:43,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1654 transitions. [2023-11-29 03:59:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 03:59:43,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:43,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:43,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 03:59:43,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:43,605 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:43,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:43,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1937483294, now seen corresponding path program 1 times [2023-11-29 03:59:43,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:43,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883905001] [2023-11-29 03:59:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:43,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:43,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:43,607 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:43,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 03:59:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:43,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:59:43,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:43,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:43,896 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:43,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:43,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883905001] [2023-11-29 03:59:43,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883905001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:43,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:43,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:59:43,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518988670] [2023-11-29 03:59:43,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:43,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:59:43,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:59:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:59:43,899 INFO L87 Difference]: Start difference. First operand 1507 states and 1654 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:59:45,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:45,442 INFO L93 Difference]: Finished difference Result 1509 states and 1658 transitions. [2023-11-29 03:59:45,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:59:45,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2023-11-29 03:59:45,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:45,449 INFO L225 Difference]: With dead ends: 1509 [2023-11-29 03:59:45,449 INFO L226 Difference]: Without dead ends: 1509 [2023-11-29 03:59:45,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:45,450 INFO L413 NwaCegarLoop]: 1316 mSDtfsCounter, 1 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3942 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:45,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3942 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 03:59:45,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2023-11-29 03:59:45,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2023-11-29 03:59:45,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 810 states have (on average 2.0148148148148146) internal successors, (1632), 1499 states have internal predecessors, (1632), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 03:59:45,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1658 transitions. [2023-11-29 03:59:45,476 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1658 transitions. Word has length 59 [2023-11-29 03:59:45,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:45,477 INFO L495 AbstractCegarLoop]: Abstraction has 1509 states and 1658 transitions. [2023-11-29 03:59:45,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:59:45,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1658 transitions. [2023-11-29 03:59:45,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 03:59:45,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:45,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:45,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-29 03:59:45,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:45,678 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:45,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:45,679 INFO L85 PathProgramCache]: Analyzing trace with hash -481511142, now seen corresponding path program 1 times [2023-11-29 03:59:45,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:45,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417102699] [2023-11-29 03:59:45,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:45,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:45,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:45,681 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:45,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 03:59:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:45,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:59:45,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:45,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:45,989 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:46,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:46,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:46,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417102699] [2023-11-29 03:59:46,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417102699] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:59:46,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:59:46,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 03:59:46,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341003181] [2023-11-29 03:59:46,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:46,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:59:46,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:46,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:59:46,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:59:46,046 INFO L87 Difference]: Start difference. First operand 1509 states and 1658 transitions. Second operand has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:59:47,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:47,815 INFO L93 Difference]: Finished difference Result 1518 states and 1673 transitions. [2023-11-29 03:59:47,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:59:47,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 60 [2023-11-29 03:59:47,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:47,822 INFO L225 Difference]: With dead ends: 1518 [2023-11-29 03:59:47,822 INFO L226 Difference]: Without dead ends: 1518 [2023-11-29 03:59:47,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:59:47,823 INFO L413 NwaCegarLoop]: 1314 mSDtfsCounter, 7 mSDsluCounter, 2624 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3938 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:47,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3938 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 03:59:47,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2023-11-29 03:59:47,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1517. [2023-11-29 03:59:47,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 817 states have (on average 2.0134638922888617) internal successors, (1645), 1506 states have internal predecessors, (1645), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 03:59:47,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 1671 transitions. [2023-11-29 03:59:47,843 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 1671 transitions. Word has length 60 [2023-11-29 03:59:47,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:47,843 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 1671 transitions. [2023-11-29 03:59:47,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:59:47,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 1671 transitions. [2023-11-29 03:59:47,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 03:59:47,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:47,844 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:47,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 03:59:48,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:48,045 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:48,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:48,045 INFO L85 PathProgramCache]: Analyzing trace with hash 725510114, now seen corresponding path program 2 times [2023-11-29 03:59:48,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:48,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611886776] [2023-11-29 03:59:48,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:59:48,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:48,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:48,047 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:48,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-29 03:59:48,501 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:59:48,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:59:48,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:59:48,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:48,554 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:48,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:48,693 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:48,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:48,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611886776] [2023-11-29 03:59:48,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611886776] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:59:48,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:59:48,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 03:59:48,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774351677] [2023-11-29 03:59:48,694 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:48,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:59:48,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:48,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:59:48,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:59:48,696 INFO L87 Difference]: Start difference. First operand 1517 states and 1671 transitions. Second operand has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:59:52,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:52,030 INFO L93 Difference]: Finished difference Result 1532 states and 1697 transitions. [2023-11-29 03:59:52,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 03:59:52,031 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 63 [2023-11-29 03:59:52,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:52,035 INFO L225 Difference]: With dead ends: 1532 [2023-11-29 03:59:52,035 INFO L226 Difference]: Without dead ends: 1530 [2023-11-29 03:59:52,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:59:52,037 INFO L413 NwaCegarLoop]: 1314 mSDtfsCounter, 13 mSDsluCounter, 6560 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7874 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:52,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7874 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 03:59:52,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2023-11-29 03:59:52,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1526. [2023-11-29 03:59:52,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 826 states have (on average 2.0060532687651333) internal successors, (1657), 1515 states have internal predecessors, (1657), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 03:59:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1683 transitions. [2023-11-29 03:59:52,059 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1683 transitions. Word has length 63 [2023-11-29 03:59:52,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:52,060 INFO L495 AbstractCegarLoop]: Abstraction has 1526 states and 1683 transitions. [2023-11-29 03:59:52,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:59:52,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1683 transitions. [2023-11-29 03:59:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 03:59:52,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:52,061 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:52,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-11-29 03:59:52,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:52,262 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 03:59:52,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:52,262 INFO L85 PathProgramCache]: Analyzing trace with hash 7757026, now seen corresponding path program 3 times [2023-11-29 03:59:52,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:59:52,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422224356] [2023-11-29 03:59:52,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:59:52,263 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:59:52,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:59:52,264 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:59:52,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-29 03:59:52,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-29 03:59:52,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:59:53,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:59:53,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:53,133 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:53,133 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:53,724 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:59:53,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:59:53,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422224356] [2023-11-29 03:59:53,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422224356] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:59:53,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:59:53,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 03:59:53,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537288923] [2023-11-29 03:59:53,725 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:53,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 03:59:53,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:59:53,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 03:59:53,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 03:59:53,727 INFO L87 Difference]: Start difference. First operand 1526 states and 1683 transitions. Second operand has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:00:03,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:03,004 INFO L93 Difference]: Finished difference Result 1556 states and 1747 transitions. [2023-11-29 04:00:03,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 04:00:03,004 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 69 [2023-11-29 04:00:03,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:03,010 INFO L225 Difference]: With dead ends: 1556 [2023-11-29 04:00:03,010 INFO L226 Difference]: Without dead ends: 1553 [2023-11-29 04:00:03,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=793, Invalid=1559, Unknown=0, NotChecked=0, Total=2352 [2023-11-29 04:00:03,012 INFO L413 NwaCegarLoop]: 1312 mSDtfsCounter, 24 mSDsluCounter, 17022 mSDsCounter, 0 mSdLazyCounter, 3267 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 18334 SdHoareTripleChecker+Invalid, 3316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:03,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 18334 Invalid, 3316 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 3267 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-11-29 04:00:03,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2023-11-29 04:00:03,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1544. [2023-11-29 04:00:03,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 844 states have (on average 1.990521327014218) internal successors, (1680), 1533 states have internal predecessors, (1680), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 04:00:03,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 1706 transitions. [2023-11-29 04:00:03,040 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 1706 transitions. Word has length 69 [2023-11-29 04:00:03,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:03,041 INFO L495 AbstractCegarLoop]: Abstraction has 1544 states and 1706 transitions. [2023-11-29 04:00:03,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:00:03,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 1706 transitions. [2023-11-29 04:00:03,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 04:00:03,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:03,042 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:03,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-11-29 04:00:03,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:00:03,243 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 04:00:03,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:03,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1192429282, now seen corresponding path program 4 times [2023-11-29 04:00:03,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:00:03,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690268278] [2023-11-29 04:00:03,244 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:00:03,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:00:03,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:00:03,245 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:00:03,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-29 04:00:03,621 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:00:03,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:00:03,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 04:00:03,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:04,060 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:00:04,061 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:05,587 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:00:05,587 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:00:05,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690268278] [2023-11-29 04:00:05,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690268278] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:00:05,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:00:05,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 04:00:05,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739481191] [2023-11-29 04:00:05,588 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:05,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 04:00:05,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:00:05,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 04:00:05,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 04:00:05,591 INFO L87 Difference]: Start difference. First operand 1544 states and 1706 transitions. Second operand has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:00:25,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:25,033 INFO L93 Difference]: Finished difference Result 1601 states and 1816 transitions. [2023-11-29 04:00:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-11-29 04:00:25,034 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2023-11-29 04:00:25,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:25,036 INFO L225 Difference]: With dead ends: 1601 [2023-11-29 04:00:25,037 INFO L226 Difference]: Without dead ends: 1599 [2023-11-29 04:00:25,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1385 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=3791, Invalid=9319, Unknown=0, NotChecked=0, Total=13110 [2023-11-29 04:00:25,041 INFO L413 NwaCegarLoop]: 1314 mSDtfsCounter, 47 mSDsluCounter, 31486 mSDsCounter, 0 mSdLazyCounter, 7121 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 32800 SdHoareTripleChecker+Invalid, 7202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 7121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:25,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 32800 Invalid, 7202 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [81 Valid, 7121 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2023-11-29 04:00:25,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2023-11-29 04:00:25,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1578. [2023-11-29 04:00:25,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 878 states have (on average 1.9658314350797266) internal successors, (1726), 1567 states have internal predecessors, (1726), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 04:00:25,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 1752 transitions. [2023-11-29 04:00:25,070 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 1752 transitions. Word has length 81 [2023-11-29 04:00:25,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:25,070 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 1752 transitions. [2023-11-29 04:00:25,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:00:25,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 1752 transitions. [2023-11-29 04:00:25,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:00:25,072 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:25,072 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:25,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-11-29 04:00:25,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:00:25,274 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 04:00:25,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:25,274 INFO L85 PathProgramCache]: Analyzing trace with hash 129102818, now seen corresponding path program 5 times [2023-11-29 04:00:25,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:00:25,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107597755] [2023-11-29 04:00:25,275 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 04:00:25,275 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:00:25,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:00:25,276 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:00:25,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-11-29 04:00:26,657 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-29 04:00:26,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:00:26,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 58 conjunts are in the unsatisfiable core [2023-11-29 04:00:26,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:26,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 04:00:26,828 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 04:00:26,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 04:00:26,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 04:00:26,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-29 04:00:27,931 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 04:00:27,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 04:00:27,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-29 04:00:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-29 04:00:28,014 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:28,395 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1685 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_1685) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-29 04:00:28,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:00:28,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107597755] [2023-11-29 04:00:28,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107597755] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:28,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1675251146] [2023-11-29 04:00:28,398 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 04:00:28,398 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 04:00:28,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 04:00:28,399 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 04:00:28,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-11-29 04:01:30,220 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-29 04:01:30,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:01:30,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-29 04:01:30,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:30,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 04:01:30,667 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 04:01:30,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 04:01:30,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:01:31,256 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 04:01:31,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 04:01:31,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-29 04:01:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-29 04:01:31,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:31,709 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2023-11-29 04:01:31,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2023-11-29 04:01:31,716 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2131 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2131) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)) |c_ULTIMATE.start_main_#t~mem33#1.base|)) is different from false [2023-11-29 04:01:31,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1675251146] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:01:31,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:01:31,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 17 [2023-11-29 04:01:31,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114857385] [2023-11-29 04:01:31,718 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:31,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 04:01:31,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:01:31,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 04:01:31,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=294, Unknown=2, NotChecked=70, Total=420 [2023-11-29 04:01:31,720 INFO L87 Difference]: Start difference. First operand 1578 states and 1752 transitions. Second operand has 18 states, 15 states have (on average 7.8) internal successors, (117), 17 states have internal predecessors, (117), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:01:46,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:46,888 INFO L93 Difference]: Finished difference Result 2377 states and 2586 transitions. [2023-11-29 04:01:46,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:01:46,888 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 7.8) internal successors, (117), 17 states have internal predecessors, (117), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 103 [2023-11-29 04:01:46,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:46,893 INFO L225 Difference]: With dead ends: 2377 [2023-11-29 04:01:46,893 INFO L226 Difference]: Without dead ends: 2375 [2023-11-29 04:01:46,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=504, Unknown=2, NotChecked=94, Total=702 [2023-11-29 04:01:46,894 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 2466 mSDsluCounter, 7337 mSDsCounter, 0 mSdLazyCounter, 8681 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2487 SdHoareTripleChecker+Valid, 8190 SdHoareTripleChecker+Invalid, 8741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 8681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:46,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2487 Valid, 8190 Invalid, 8741 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 8681 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2023-11-29 04:01:46,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2023-11-29 04:01:46,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 1624. [2023-11-29 04:01:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 924 states have (on average 1.9177489177489178) internal successors, (1772), 1612 states have internal predecessors, (1772), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 04:01:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 1798 transitions. [2023-11-29 04:01:46,926 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 1798 transitions. Word has length 103 [2023-11-29 04:01:46,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:46,926 INFO L495 AbstractCegarLoop]: Abstraction has 1624 states and 1798 transitions. [2023-11-29 04:01:46,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 7.8) internal successors, (117), 17 states have internal predecessors, (117), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:01:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 1798 transitions. [2023-11-29 04:01:46,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:01:46,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:46,927 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:46,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-11-29 04:01:47,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-11-29 04:01:47,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:01:47,328 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 04:01:47,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:47,328 INFO L85 PathProgramCache]: Analyzing trace with hash 129102819, now seen corresponding path program 1 times [2023-11-29 04:01:47,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:01:47,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917744495] [2023-11-29 04:01:47,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:47,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:01:47,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:01:47,330 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:01:47,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-11-29 04:01:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:48,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 107 conjunts are in the unsatisfiable core [2023-11-29 04:01:48,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:48,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 04:01:48,141 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 04:01:48,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 04:01:48,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 04:01:48,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 04:01:48,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 04:01:48,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-29 04:01:48,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 04:01:49,001 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 04:01:49,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 04:01:49,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 04:01:49,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-29 04:01:49,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 04:01:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-29 04:01:49,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:50,446 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_2668 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2669 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2669) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2668) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_2669 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2669) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd (_ bv20 32) .cse1)))))) is different from false [2023-11-29 04:01:50,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:01:50,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917744495] [2023-11-29 04:01:50,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917744495] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:01:50,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [860509402] [2023-11-29 04:01:50,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:50,454 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 04:01:50,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 04:01:50,455 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 04:01:50,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-11-29 04:03:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:22,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 109 conjunts are in the unsatisfiable core [2023-11-29 04:03:22,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:22,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 04:03:22,669 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 04:03:22,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 04:03:22,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 04:03:22,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:03:22,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:03:22,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 04:03:22,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 04:03:23,477 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 04:03:23,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 04:03:23,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-29 04:03:23,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-29 04:03:23,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 04:03:23,563 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-29 04:03:23,563 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:24,831 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3206 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_3206) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((v_ArrVal_3207 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3206 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_3206) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_3207) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2023-11-29 04:03:24,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [860509402] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:24,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:03:24,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-11-29 04:03:24,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569697283] [2023-11-29 04:03:24,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:24,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:03:24,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:03:24,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:03:24,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=172, Unknown=2, NotChecked=54, Total=272 [2023-11-29 04:03:24,839 INFO L87 Difference]: Start difference. First operand 1624 states and 1798 transitions. Second operand has 13 states, 10 states have (on average 11.2) internal successors, (112), 13 states have internal predecessors, (112), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:03:45,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:45,206 INFO L93 Difference]: Finished difference Result 2373 states and 2578 transitions. [2023-11-29 04:03:45,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:03:45,207 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 11.2) internal successors, (112), 13 states have internal predecessors, (112), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 103 [2023-11-29 04:03:45,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:45,213 INFO L225 Difference]: With dead ends: 2373 [2023-11-29 04:03:45,213 INFO L226 Difference]: Without dead ends: 2373 [2023-11-29 04:03:45,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 194 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=271, Unknown=2, NotChecked=70, Total=420 [2023-11-29 04:03:45,214 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 2453 mSDsluCounter, 4720 mSDsCounter, 0 mSdLazyCounter, 10606 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2471 SdHoareTripleChecker+Valid, 5584 SdHoareTripleChecker+Invalid, 10643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 10606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:45,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2471 Valid, 5584 Invalid, 10643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 10606 Invalid, 0 Unknown, 0 Unchecked, 20.1s Time] [2023-11-29 04:03:45,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2023-11-29 04:03:45,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 1623. [2023-11-29 04:03:45,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 924 states have (on average 1.9166666666666667) internal successors, (1771), 1611 states have internal predecessors, (1771), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 04:03:45,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 1797 transitions. [2023-11-29 04:03:45,242 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 1797 transitions. Word has length 103 [2023-11-29 04:03:45,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:45,242 INFO L495 AbstractCegarLoop]: Abstraction has 1623 states and 1797 transitions. [2023-11-29 04:03:45,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 11.2) internal successors, (112), 13 states have internal predecessors, (112), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:03:45,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 1797 transitions. [2023-11-29 04:03:45,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 04:03:45,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:45,244 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:03:45,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-11-29 04:03:45,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-11-29 04:03:45,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:03:45,648 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr74REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 04:03:45,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:45,649 INFO L85 PathProgramCache]: Analyzing trace with hash -483733618, now seen corresponding path program 1 times [2023-11-29 04:03:45,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:03:45,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152218261] [2023-11-29 04:03:45,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:45,650 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:03:45,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:03:45,651 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:03:45,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-11-29 04:03:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:46,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 59 conjunts are in the unsatisfiable core [2023-11-29 04:03:46,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:46,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 04:03:46,523 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 04:03:46,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 04:03:46,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 04:03:46,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-29 04:03:47,420 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 04:03:47,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 04:03:47,520 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 04:03:47,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 04:03:47,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-29 04:03:47,567 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-29 04:03:47,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:47,616 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3615 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_3615) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)))) is different from false [2023-11-29 04:03:47,625 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3615 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#4.base| (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_3615) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2023-11-29 04:03:47,974 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3615 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3661 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_3661))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3615)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 04:03:47,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:03:47,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152218261] [2023-11-29 04:03:47,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152218261] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:47,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1086065900] [2023-11-29 04:03:47,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:47,976 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 04:03:47,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 04:03:47,977 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 04:03:47,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-11-29 04:03:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:49,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 62 conjunts are in the unsatisfiable core [2023-11-29 04:03:49,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:49,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 04:03:50,041 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 04:03:50,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 04:03:50,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:03:50,583 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 04:03:50,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 04:03:50,702 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 04:03:50,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 04:03:50,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-29 04:03:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-29 04:03:50,715 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:50,729 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4069 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_4069) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)))) is different from false [2023-11-29 04:03:51,215 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2023-11-29 04:03:51,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2023-11-29 04:03:51,225 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4069 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4115 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_4115))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4069)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem33#1.base|)) is different from false [2023-11-29 04:03:51,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1086065900] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:51,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:03:51,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19 [2023-11-29 04:03:51,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375479758] [2023-11-29 04:03:51,227 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:51,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 04:03:51,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:03:51,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 04:03:51,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=398, Unknown=6, NotChecked=220, Total=702 [2023-11-29 04:03:51,229 INFO L87 Difference]: Start difference. First operand 1623 states and 1797 transitions. Second operand has 20 states, 17 states have (on average 7.117647058823529) internal successors, (121), 19 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:04:11,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:04:11,068 INFO L93 Difference]: Finished difference Result 2373 states and 2580 transitions. [2023-11-29 04:04:11,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:04:11,068 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 7.117647058823529) internal successors, (121), 19 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 105 [2023-11-29 04:04:11,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:04:11,073 INFO L225 Difference]: With dead ends: 2373 [2023-11-29 04:04:11,073 INFO L226 Difference]: Without dead ends: 2373 [2023-11-29 04:04:11,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=141, Invalid=685, Unknown=6, NotChecked=290, Total=1122 [2023-11-29 04:04:11,074 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 1547 mSDsluCounter, 9361 mSDsCounter, 0 mSdLazyCounter, 11180 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 10213 SdHoareTripleChecker+Invalid, 11220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 11180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:04:11,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1568 Valid, 10213 Invalid, 11220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 11180 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2023-11-29 04:04:11,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2023-11-29 04:04:11,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 1622. [2023-11-29 04:04:11,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 924 states have (on average 1.9155844155844155) internal successors, (1770), 1610 states have internal predecessors, (1770), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 04:04:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 1796 transitions. [2023-11-29 04:04:11,097 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 1796 transitions. Word has length 105 [2023-11-29 04:04:11,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:04:11,097 INFO L495 AbstractCegarLoop]: Abstraction has 1622 states and 1796 transitions. [2023-11-29 04:04:11,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 7.117647058823529) internal successors, (121), 19 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:04:11,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 1796 transitions. [2023-11-29 04:04:11,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 04:04:11,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:04:11,098 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:04:11,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-11-29 04:04:11,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-11-29 04:04:11,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 04:04:11,499 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr75REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 04:04:11,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:04:11,500 INFO L85 PathProgramCache]: Analyzing trace with hash -483733617, now seen corresponding path program 1 times [2023-11-29 04:04:11,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:04:11,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826330146] [2023-11-29 04:04:11,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:11,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:04:11,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:04:11,501 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:04:11,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-11-29 04:04:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:04:12,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 110 conjunts are in the unsatisfiable core [2023-11-29 04:04:12,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:04:12,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 04:04:12,485 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 04:04:12,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 04:04:12,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 04:04:12,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 04:04:12,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 04:04:12,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-29 04:04:12,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 04:04:13,208 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 04:04:13,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 04:04:13,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 04:04:13,303 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 04:04:13,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 04:04:13,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 04:04:13,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-29 04:04:13,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 04:04:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-29 04:04:13,351 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:04:13,492 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4568 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4569 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_4568) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_4569) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_4568 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_4568) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv4 32) .cse1) (bvadd (_ bv8 32) .cse1)))))) is different from false [2023-11-29 04:04:13,526 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_4568 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4569 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| .cse0 v_ArrVal_4568) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| .cse0 v_ArrVal_4569) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_4568 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#4.offset| .cse0 v_ArrVal_4568) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse2) (bvadd .cse2 (_ bv8 32)))))))) is different from false [2023-11-29 04:04:14,776 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4568 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4661 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4660 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_4661) (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_4660) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4568) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_4568 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4569 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4661 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4660 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_4660))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_4661) .cse2 v_ArrVal_4568) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_4569) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2023-11-29 04:04:14,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:04:14,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826330146] [2023-11-29 04:04:14,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826330146] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:04:14,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1557074725] [2023-11-29 04:04:14,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:14,785 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 04:04:14,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 04:04:14,786 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 04:04:14,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-11-29 04:06:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:06:06,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 112 conjunts are in the unsatisfiable core [2023-11-29 04:06:06,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:06:06,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 04:06:06,492 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 04:06:06,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 04:06:06,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 04:06:06,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:06:06,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:06:06,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 04:06:06,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 04:06:07,256 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 04:06:07,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 04:06:07,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-29 04:06:07,420 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 04:06:07,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 04:06:07,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-29 04:06:07,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-29 04:06:07,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 04:06:07,449 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-29 04:06:07,449 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:06:07,495 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5115) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_5114 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5115) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5114) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2023-11-29 04:06:07,529 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#4.offset| .cse1 v_ArrVal_5115) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_5114 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| .cse1 v_ArrVal_5115) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| .cse1 v_ArrVal_5114) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2023-11-29 04:06:08,804 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5206 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5207 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5114 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_5206))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_5207) .cse0 v_ArrVal_5115) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_5114) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_5206 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5207 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_5207) (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_5206) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5115) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3)))))) is different from false [2023-11-29 04:06:08,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1557074725] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:06:08,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:06:08,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-11-29 04:06:08,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142041798] [2023-11-29 04:06:08,813 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:06:08,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 04:06:08,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:06:08,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 04:06:08,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=228, Unknown=6, NotChecked=210, Total=506 [2023-11-29 04:06:08,815 INFO L87 Difference]: Start difference. First operand 1622 states and 1796 transitions. Second operand has 15 states, 12 states have (on average 9.666666666666666) internal successors, (116), 15 states have internal predecessors, (116), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:06:30,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:06:30,499 INFO L93 Difference]: Finished difference Result 2371 states and 2576 transitions. [2023-11-29 04:06:30,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:06:30,500 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 9.666666666666666) internal successors, (116), 15 states have internal predecessors, (116), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 105 [2023-11-29 04:06:30,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:06:30,504 INFO L225 Difference]: With dead ends: 2371 [2023-11-29 04:06:30,504 INFO L226 Difference]: Without dead ends: 2371 [2023-11-29 04:06:30,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 196 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=105, Invalid=375, Unknown=6, NotChecked=270, Total=756 [2023-11-29 04:06:30,505 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 1532 mSDsluCounter, 5108 mSDsCounter, 0 mSdLazyCounter, 10948 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 5971 SdHoareTripleChecker+Invalid, 10966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 10948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:06:30,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 5971 Invalid, 10966 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 10948 Invalid, 0 Unknown, 0 Unchecked, 21.3s Time] [2023-11-29 04:06:30,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2023-11-29 04:06:30,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 1621. [2023-11-29 04:06:30,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 924 states have (on average 1.9145021645021645) internal successors, (1769), 1609 states have internal predecessors, (1769), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 04:06:30,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 1795 transitions. [2023-11-29 04:06:30,523 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 1795 transitions. Word has length 105 [2023-11-29 04:06:30,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:06:30,523 INFO L495 AbstractCegarLoop]: Abstraction has 1621 states and 1795 transitions. [2023-11-29 04:06:30,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 9.666666666666666) internal successors, (116), 15 states have internal predecessors, (116), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:06:30,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 1795 transitions. [2023-11-29 04:06:30,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 04:06:30,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:06:30,524 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:06:30,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-11-29 04:06:30,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-11-29 04:06:30,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:06:30,925 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 04:06:30,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:06:30,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1009034604, now seen corresponding path program 1 times [2023-11-29 04:06:30,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:06:30,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730456803] [2023-11-29 04:06:30,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:06:30,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:06:30,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:06:30,927 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:06:30,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-11-29 04:06:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:06:31,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 61 conjunts are in the unsatisfiable core [2023-11-29 04:06:31,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:06:31,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 04:06:32,014 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 04:06:32,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 04:06:32,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 04:06:32,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-29 04:06:32,866 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 04:06:32,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 04:06:32,971 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 04:06:32,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 04:06:33,061 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 04:06:33,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 04:06:33,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-29 04:06:33,110 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-29 04:06:33,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:06:37,214 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5631 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#4.base| (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_5631) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (_ bv1 1)))) is different from false [2023-11-29 04:06:37,227 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5630 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5631 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5630))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5631)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-29 04:06:37,240 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5630 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5631 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5630))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5631)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-29 04:06:37,590 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5630 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5631 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5677 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_5677))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5630)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5631)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2023-11-29 04:06:37,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:06:37,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730456803] [2023-11-29 04:06:37,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730456803] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:06:37,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [26757211] [2023-11-29 04:06:37,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:06:37,594 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 04:06:37,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 04:06:37,595 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 04:06:37,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-11-29 04:06:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:06:40,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-29 04:06:40,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:06:40,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 04:06:40,305 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 04:06:40,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 04:06:40,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:06:40,956 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 04:06:40,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 04:06:41,090 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 04:06:41,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 04:06:41,174 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 04:06:41,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 04:06:41,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-29 04:06:41,186 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-29 04:06:41,186 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:06:45,261 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5631 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6099 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6099))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5631)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 04:06:45,273 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5631 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6099 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6099))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5631)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-29 04:06:45,665 INFO L349 Elim1Store]: treesize reduction 7, result has 87.3 percent of original size [2023-11-29 04:06:45,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 60 [2023-11-29 04:06:45,678 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5631 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6099 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6146 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem33#1.base| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_6146))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6099)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5631)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2023-11-29 04:06:45,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [26757211] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:06:45,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:06:45,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 21 [2023-11-29 04:06:45,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857173665] [2023-11-29 04:06:45,681 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:06:45,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 04:06:45,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:06:45,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 04:06:45,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=483, Unknown=9, NotChecked=350, Total=930 [2023-11-29 04:06:45,683 INFO L87 Difference]: Start difference. First operand 1621 states and 1795 transitions. Second operand has 22 states, 19 states have (on average 6.578947368421052) internal successors, (125), 21 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:07:07,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:07,527 INFO L93 Difference]: Finished difference Result 2371 states and 2578 transitions. [2023-11-29 04:07:07,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:07:07,527 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 6.578947368421052) internal successors, (125), 21 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 107 [2023-11-29 04:07:07,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:07,531 INFO L225 Difference]: With dead ends: 2371 [2023-11-29 04:07:07,531 INFO L226 Difference]: Without dead ends: 2371 [2023-11-29 04:07:07,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 197 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=159, Invalid=852, Unknown=9, NotChecked=462, Total=1482 [2023-11-29 04:07:07,532 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 2451 mSDsluCounter, 9088 mSDsCounter, 0 mSdLazyCounter, 10708 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 9939 SdHoareTripleChecker+Invalid, 10767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 10708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:07:07,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 9939 Invalid, 10767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 10708 Invalid, 0 Unknown, 0 Unchecked, 21.3s Time] [2023-11-29 04:07:07,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2023-11-29 04:07:07,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 1620. [2023-11-29 04:07:07,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 924 states have (on average 1.9134199134199135) internal successors, (1768), 1608 states have internal predecessors, (1768), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 04:07:07,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 1794 transitions. [2023-11-29 04:07:07,552 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 1794 transitions. Word has length 107 [2023-11-29 04:07:07,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:07,553 INFO L495 AbstractCegarLoop]: Abstraction has 1620 states and 1794 transitions. [2023-11-29 04:07:07,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 6.578947368421052) internal successors, (125), 21 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:07:07,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 1794 transitions. [2023-11-29 04:07:07,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 04:07:07,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:07,554 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:07:07,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-11-29 04:07:07,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-11-29 04:07:07,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 04:07:07,955 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-29 04:07:07,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:07,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1009034603, now seen corresponding path program 1 times [2023-11-29 04:07:07,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:07:07,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845873840] [2023-11-29 04:07:07,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:07,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:07:07,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:07:07,957 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:07:07,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-11-29 04:07:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:08,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 113 conjunts are in the unsatisfiable core [2023-11-29 04:07:08,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:07:08,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 04:07:09,031 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 04:07:09,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 04:07:09,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 04:07:09,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 04:07:09,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 04:07:09,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-29 04:07:09,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 04:07:09,789 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 04:07:09,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 04:07:09,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 04:07:09,908 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 04:07:09,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 04:07:09,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 04:07:10,004 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 04:07:10,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 04:07:10,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 04:07:10,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-29 04:07:10,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 04:07:10,072 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-29 04:07:10,072 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:07:10,236 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6616 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6616) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_6617 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv8 32) .cse1) (bvadd .cse1 (_ bv12 32))))))) is different from false [2023-11-29 04:07:10,270 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_6617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6616 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| .cse0 v_ArrVal_6617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| .cse0 v_ArrVal_6616) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_6617 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#4.offset| .cse0 v_ArrVal_6617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse2) (bvadd .cse2 (_ bv12 32)))))))) is different from false [2023-11-29 04:07:10,371 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6614 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6615 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6616 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6615))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6614) .cse0 v_ArrVal_6617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_6616) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_6617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6614 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6615 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6614) (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6615) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd .cse3 (_ bv12 32))))))) is different from false [2023-11-29 04:07:10,453 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6614 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6615 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6616 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#4.base| .cse0 v_ArrVal_6615))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#4.offset| .cse0 v_ArrVal_6614) .cse1 v_ArrVal_6617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_6616) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_6617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6614 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6615 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#4.offset| .cse0 v_ArrVal_6614) (select (select (store |c_#memory_$Pointer$#4.base| .cse0 v_ArrVal_6615) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse4) (bvadd .cse4 (_ bv12 32)))))))) is different from false [2023-11-29 04:07:11,683 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6708 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6614 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6615 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6616 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6709 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_6708))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_6615))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_6709) .cse0 v_ArrVal_6614) .cse1 v_ArrVal_6617) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_6616) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_6617 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6708 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6614 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6615 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6709 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_6708))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_6709) .cse6 v_ArrVal_6614) (select (select (store .cse7 .cse6 v_ArrVal_6615) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6617))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse5 (_ bv8 32)) (bvadd .cse5 (_ bv12 32))))))) is different from false [2023-11-29 04:07:11,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:07:11,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845873840] [2023-11-29 04:07:11,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845873840] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:07:11,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1434056442] [2023-11-29 04:07:11,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:11,698 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 04:07:11,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 04:07:11,699 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 04:07:11,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027879f-09a1-45fe-a31e-441ef0d8b5db/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-11-29 04:07:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:37,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 80 conjunts are in the unsatisfiable core [2023-11-29 04:07:37,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:07:37,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 04:07:37,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 04:07:37,719 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-11-29 04:07:37,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2023-11-29 04:07:37,753 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 04:07:37,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 04:07:37,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:07:37,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:07:37,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-29 04:07:37,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 04:07:38,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 04:07:38,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 04:07:38,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 38 [2023-11-29 04:07:38,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 11 [2023-11-29 04:07:39,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:07:39,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 15 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 106 [2023-11-29 04:07:39,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 11 [2023-11-29 04:07:39,072 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:07:39,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 15 [2023-11-29 04:07:39,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 04:07:39,204 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-29 04:07:39,204 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:07:39,361 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem36#1.base|)) (.cse2 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_#t~mem36#1.offset|)) (.cse3 (bvadd |c_ULTIMATE.start_main_#t~mem36#1.offset| (_ bv5 32))) (.cse4 (bvadd (_ bv6 32) |c_ULTIMATE.start_main_#t~mem36#1.offset|)) (.cse5 (bvadd |c_ULTIMATE.start_main_#t~mem36#1.offset| (_ bv7 32))) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7139 (_ BitVec 32)) (v_ArrVal_7138 (_ BitVec 32)) (v_ArrVal_7142 (_ BitVec 32)) (v_ArrVal_7141 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| (store (store (store (store .cse1 .cse2 v_ArrVal_7139) .cse3 v_ArrVal_7138) .cse4 v_ArrVal_7141) .cse5 v_ArrVal_7142)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_7137 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (store (store (store (store (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem36#1.base|) .cse2 (select v_ArrVal_7137 .cse2)) .cse3 (select v_ArrVal_7137 .cse3)) .cse4 (select v_ArrVal_7137 .cse4)) .cse5 (select v_ArrVal_7137 .cse5)) v_ArrVal_7137)) (forall ((v_ArrVal_7139 (_ BitVec 32)) (v_ArrVal_7138 (_ BitVec 32)) (v_ArrVal_7142 (_ BitVec 32)) (v_ArrVal_7141 (_ BitVec 32))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| (store (store (store (store .cse1 .cse2 v_ArrVal_7139) .cse3 v_ArrVal_7138) .cse4 v_ArrVal_7141) .cse5 v_ArrVal_7142)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7137) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)))))))) is different from false [2023-11-29 04:07:39,506 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse7 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse8 (select (select |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse7)) (.cse1 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse7))) (let ((.cse2 (select |c_#memory_$Pointer$#4.offset| .cse1)) (.cse3 (bvadd (_ bv4 32) .cse8)) (.cse4 (bvadd .cse8 (_ bv5 32))) (.cse5 (bvadd (_ bv6 32) .cse8)) (.cse6 (bvadd .cse8 (_ bv7 32)))) (and (forall ((v_ArrVal_7139 (_ BitVec 32)) (v_ArrVal_7138 (_ BitVec 32)) (v_ArrVal_7142 (_ BitVec 32)) (v_ArrVal_7141 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#4.offset| .cse1 (store (store (store (store .cse2 .cse3 v_ArrVal_7139) .cse4 v_ArrVal_7138) .cse5 v_ArrVal_7141) .cse6 v_ArrVal_7142)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse7))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_7137 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_7139 (_ BitVec 32)) (v_ArrVal_7138 (_ BitVec 32)) (v_ArrVal_7142 (_ BitVec 32)) (v_ArrVal_7141 (_ BitVec 32))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| .cse1 (store (store (store (store .cse2 .cse3 v_ArrVal_7139) .cse4 v_ArrVal_7138) .cse5 v_ArrVal_7141) .cse6 v_ArrVal_7142)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse7) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| .cse1 v_ArrVal_7137) |c_ULTIMATE.start_main_~user~0#1.base|) .cse7)))) (not (= v_ArrVal_7137 (store (store (store (store (select |c_#memory_$Pointer$#4.base| .cse1) .cse3 (select v_ArrVal_7137 .cse3)) .cse4 (select v_ArrVal_7137 .cse4)) .cse5 (select v_ArrVal_7137 .cse5)) .cse6 (select v_ArrVal_7137 .cse6)))))))))) is different from false [2023-11-29 04:07:47,626 INFO L349 Elim1Store]: treesize reduction 21, result has 63.8 percent of original size [2023-11-29 04:07:47,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 2234 treesize of output 2018 [2023-11-29 04:07:48,293 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:07:48,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1992 treesize of output 1994 [2023-11-29 04:07:55,369 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 04:07:55,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 257206 treesize of output 256950 [2023-11-29 04:08:03,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64043 treesize of output 64011 [2023-11-29 04:08:35,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128454 treesize of output 128390 [2023-11-29 04:09:14,213 WARN L293 SmtUtils]: Spent 24.95s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-29 04:09:14,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:09:14,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69197975 treesize of output 54364473